HEALTH TOPICS 
By the way, doctor: Is that too much vitamin D?
Q. My doctor found that my blood levels of vitamin D were low, and gave me a prescription for 50,000 international units of vitamin D to be taken every two weeks. But I've read that the recommended dose is more like 1,000 IU a day, and that more than 2,000 IU a day is unsafe. I'm a healthy woman (albeit somewhat osteopenic already) and don't want to do more harm than good!
A. Your doctor's prescription makes sense, but I can see why you're confused.
To continue reading this article, you must log in.
Subscribe to Harvard Health Online for immediate access to health news and information from Harvard Medical School.
- Research health conditions
- Check your symptoms
- Prepare for a doctor's visit or test
- Find the best treatments and procedures for you
- Explore options for better nutrition and exercise